Edmund Crouchback

Edmund Crouchback, 1st Earl of Lancaster and Leicester (16 January 1245-5 June 1296) was an English nobleman. The second son of King Henry III of England and the younger brother of Prince Edward of Wales, he attempted to claim the throne of Sicily but failed. His nickname "Crouchback" came from "Crossback", as he wore a red cross on the back of his tunic.

Biography
Crouchback was the younger brother of Prince Edward and Beatrice of England, and the son of King Henry III of England and Eleanor of Provence. In 1255, Pope Innocent IV invested him as the King of Sicily, but Conrad IV of Germany was still alive, so the claim was worthless.

In 1265, after the death of Simon V de Montfort, Edmund became the Earl of Lancaster and Leicester. He accompanied Prince Edward on the Ninth Crusade in 1270, wearing a red cross on his back, giving him the nickname "Crouchback" (coming from Latin crus, meaning cross). In 1296, he headed to Aquitaine to aid his brother King Edward I on campaign against France. During the Siege of Bayonne, the English ran out of money, so Edmund was forced to lift the siege. He died broken-hearted and was buried at Westminster Abbey.